/************************************************************************
 * Cruise - a programming language of bad actors
 * Copyright 2006 Mark C. Chu-Carroll
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, 
 * software distributed under the License is distributed on an 
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
 * either express or implied. See the License for the specific 
 * language governing permissions and limitations under the License.
 * 
 */
package cruise.ast;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * The  AST for a full program. A program consists of three parts:
 * <ol>
 * <li> A set of actor specifications
 * <li> A set of actor instantiation expressions
 * <li> A set of messages to send to start the execution of a program.
 * </ol>
 * @author markcc
 *
 */
public class Program {
	public Program() {		
	}
	
	public void addActor(ActorType a) {
	   actors.put(a.getName(), a);	
	}
	
	public Set<String> getActorNames() {
		return actors.keySet();
	}
	
	public ActorType getActor(String name) {
		return actors.get(name);
	}
	
	public SendMessageStatement getInitialMessage() {
		return message;
	}
	
	public void setInitialMessage(SendMessageStatement msg) {
		message = msg;
	}
	
	public Map<String,ActorType> actors = new HashMap<String,ActorType>();
	public SendMessageStatement message;
	
	
	
}
